Buggy code:
public class HostController { private static final Logger log = Logger . getLogger ( "org.jboss.as.host.controller" ) ; static final ServiceName SERVICE_NAME_BASE = JBOSS . append ( "host" , "controller" ) ; private final HostControllerEnvironment environment ; private final StandardElementReaderRegistrar extensionRegistrar ; private final FileRepository fileRepository ; private final ModelManager modelManager ; private final ServiceContainer serviceContainer = Factory . create ( ) ; private final AtomicBoolean serversStarted = new AtomicBoolean ( ) ; private final AtomicBoolean stopping = new AtomicBoolean ( ) ; private final Map < String , ManagedServer > servers = new HashMap < String , ManagedServer > ( ) ; private DomainControllerConnection domainControllerConnection ; private InetSocketAddress managementSocketAddress ; private ProcessControllerClient processControllerClient ; private FallbackRepository remoteBackedRepository ; private final byte [ ] authCode ; public HostController ( HostControllerEnvironment environment , final byte [ ] authCode ) { } public String getName ( ) { } public Map < ServerIdentity , ServerStatus > getServerStatuses ( ) { } private ServerStatus determineServerStatus ( String serverName ) { } private ServerStatus determineServerStatus ( ServerElement se ) { } public ServerModel getServerModel ( String serverName ) { } public void start ( ) throws IOException { modelManager . start ( ) ; launchProcessControllerSlave ( ) ; final BatchBuilder batchBuilder = serviceContainer . batchBuilder ( ) ; batchBuilder . addListener ( new org . jboss . msc . service . AbstractServiceListener < Object > ( ) { @ Override public void serviceFailed ( ServiceController < ? > serviceController , StartException reason ) { HostController . log . errorf ( reason , "Service<seq2seq4repair_space>[%s]<seq2seq4repair_space>failed." , serviceController . getName ( ) ) ; } } ) ; <START_BUG> final ServiceActivatorContext serviceActivatorContext = new org . jboss . msc . service . ServiceActivatorContextImpl ( batchBuilder ) ; <END_BUG> activateManagementCommunication ( serviceActivatorContext ) ; if ( ( getHostModel ( ) . getLocalDomainControllerElement ( ) ) != null ) { activateLocalDomainController ( serviceActivatorContext ) ; } else { activateRemoteDomainControllerConnection ( serviceActivatorContext ) ; } final ManagementElement managementElement = getHostModel ( ) . getManagementElement ( ) ; final HostControllerService hostControllerService = new HostControllerService ( this ) ; batchBuilder . addService ( HostController . SERVICE_NAME_BASE , hostControllerService ) . addDependency ( JBOSS_NETWORK_INTERFACE . append ( managementElement . getInterfaceName ( ) ) , NetworkInterfaceBinding . class , hostControllerService . getManagementInterfaceInjector ( ) ) . addInjection ( hostControllerService . getManagementPortInjector ( ) , managementElement . getPort ( ) ) . addDependency ( SERVICE_NAME , DomainControllerConnection . class , hostControllerService . getDomainControllerConnectionInjector ( ) ) . setInitialMode ( ACTIVE ) ; try { batchBuilder . install ( ) ; } catch ( ServiceRegistryException e ) { throw new RuntimeException ( e ) ; } } public void connectionClosed ( String processName ) { } public List < HostUpdateResult < ? > > applyHostUpdates ( final List < AbstractHostModelUpdate < ? > > updates ) { } public List < UpdateResultHandlerResponse < ? > > applyUpdatesToServer ( final ServerIdentity server , final List < AbstractServerModelUpdate < ? > > updates , final boolean allowOverallRollback ) { } public List < UpdateResultHandlerResponse < ? > > applyServerUpdates ( final String serverName , final List < AbstractServerModelUpdate < ? > > updates , boolean allowOverallRollback ) { } void availableServer ( String serverName ) { } public void stop ( ) { } void stoppedServer ( String serverName ) { } void startedServer ( String serverName ) { } void failedStartServer ( String serverName ) { } void reconnectedServer ( String serverName , ServerState state ) { } public void downServer ( String downServerName ) { } private void launchProcessControllerSlave ( ) throws IOException { } private void activateLocalDomainController ( final ServiceActivatorContext serviceActivatorContext ) { } private void activateRemoteDomainControllerConnection ( final ServiceActivatorContext serviceActivatorContext ) { } private void activateManagementCommunication ( final ServiceActivatorContext serviceActivatorContext ) { } void setDomainControllerConnection ( final DomainControllerConnection domainControllerConnection ) { } void setManagementSocketAddress ( InetSocketAddress managementSocketAddress ) { } public ModelManager getModelManager ( ) { } protected DomainModel getDomainModel ( ) { } protected HostModel getHostModel ( ) { } public void setDomain ( final DomainModel domain ) { } public ManagedServer getServer ( String name ) { } private void checkState ( ManagedServer server , ServerState expected ) { } public Map < String , ManagedServer > getServers ( ) { } private void synchronizeDeployments ( ) { } void startServers ( ) { } public ServerStatus startServer ( String serverName ) { } public ServerStatus stopServer ( String serverName , long gracefulTimeout ) { } public ServerStatus restartServer ( String serverName , long gracefulTimeout ) { } private void startServer ( String serverName , InetSocketAddress managementSocket ) throws IOException { } private List < HostUpdateResult < ? > > applyUpdatesToServers ( final List < AbstractHostModelUpdate < ? > > updates , final List < HostUpdateApplierResponse > hostResults , final boolean allowOverallRollback ) { } private Map < ServerIdentity , List < AbstractServerModelUpdate < ? > > > getUpdatesByServer ( final List < AbstractHostModelUpdate < ? > > hostUpdates , final List < HostUpdateApplierResponse > hostResults , final Map < AbstractHostModelUpdate < ? > , AbstractServerModelUpdate < ? > > serverByHost ) { } }

Fix:
final ServiceActivatorContext serviceActivatorContext = new org . jboss . msc . service . ServiceActivatorContextImpl ( batchBuilder , serviceContainer ) ;